Fuel starving at high speeds

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Fuel starving at high speeds by: lain - Jun 8, 2015 9:08:16 GMT -5

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Post by lain on Jun 8, 2015 9:08:16 GMT -5

So I got my belt rubbing issues resolved, was due to bad dried out belts that stretched too much.

Now I am able to hit 50 again but when I do it bogs and jerks a little bit but sounds like it runs out of fuel till I let go of the throttle and let it catch up, about 2 seconds then I can keep going at about 42 but if I do not let the throttle down it dies out.

I am using a manual petcock with stock fuel lines. No leaks at all. Vent hose good and not kinked.

Should I upgrade to thicker fuel line?

geh3333 PM geh3333 geh3333's Posts geh3333's Threads Senior Rider Currently Offline 2021 Vitacci Spark 150 Posts: 4,139 Likes: 791 Joined: May 13, 2013 17:55:08 GMT -5	Fuel starving at high speeds by: geh3333 - Jun 8, 2015 10:29:04 GMT -5 via mobile Reply Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by geh3333 on Jun 8, 2015 10:29:04 GMT -5 I'd say by run adjusting the float. If its the float , bigger fuel line won't help.
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Fuel starving at high speeds by: toddmaples - Jun 8, 2015 10:50:20 GMT -5 via mobile

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Post by toddmaples on Jun 8, 2015 10:50:20 GMT -5

Jun 8, 2015 10:29:04 GMT -5 geh3333 said:

I'd say by run adjusting the float. If its the float , bigger fuel line won't help.

Seconded.

On an unrelated note i had this happen today. Plug boot was loose and high speed vibrations was causing it to miss giving the illusion of fuel delivery problems at speed.

ricardoguitars PM ricardoguitars ricardoguitars's Posts ricardoguitars's Threads Senior Rider Currently Offline Pura Vida! Posts: 1,592 Likes: 281 Joined: Oct 31, 2014 8:42:52 GMT -5	Fuel starving at high speeds by: ricardoguitars - Jun 8, 2015 10:51:09 GMT -5 Reply Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by ricardoguitars on Jun 8, 2015 10:51:09 GMT -5 Try richening up the A/F mixture before adjusting the float, if it doesn't work, then try the float.
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lain PM lain lain's Posts lain's Threads Senior Rider Currently Offline Solving one problem after another Posts: 1,566 Likes: 228 Joined: Dec 16, 2014 10:54:33 GMT -5	Fuel starving at high speeds by: lain - Jun 8, 2015 12:22:03 GMT -5 Reply Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by lain on Jun 8, 2015 12:22:03 GMT -5 I installed thicker fuel line, this time clear. If the fuel in the line will not raise higher than the bowl that is okay? The thinner line would fill up the entire line and filter. Test on the road soon.
	Last Edit: Jun 8, 2015 12:23:52 GMT -5 by lain

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Fuel starving at high speeds by: keikara - Jun 8, 2015 13:27:32 GMT -5

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Post by keikara on Jun 8, 2015 13:27:32 GMT -5

Jun 8, 2015 12:22:03 GMT -5 lain said:

I installed thicker fuel line, this time clear. If the fuel in the line will not raise higher than the bowl that is okay? The thinner line would fill up the entire line and filter.

Test on the road soon.

I believe but may be wrong, as long as you have flow into the carb should be o.k., doesn't need to fill the supply line completely, as long as it has enough flow to keep the carb full.

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Fuel starving at high speeds By lain (Read 590 times)

Post by lain on Jun 8, 2015 9:08:16 GMT -5

Post by geh3333 on Jun 8, 2015 10:29:04 GMT -5

Post by toddmaples on Jun 8, 2015 10:50:20 GMT -5

Post by ricardoguitars on Jun 8, 2015 10:51:09 GMT -5

Post by lain on Jun 8, 2015 12:22:03 GMT -5

Post by keikara on Jun 8, 2015 13:27:32 GMT -5

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